Quick Disconnect Hose: MER14TCMPQD Series. The MER14TCMPQD series quick disconnect high pressure hose is designed to add length to an existing quick disconnect line on your RV. It will allow you to move your LP gas appliance away from your RV. 1/4 inch ID, 1/4 inch MNPT x M.QD Male Nipple. 10 foot L.